Home / 159,831.40-239,747.10-66,519.40

Finding the Fourth Proportional to 159,831.40, 239,747.10 and 66,519.40

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Solution

The fourth proportional to 159,831.40, 239,747.10 and 66,519.40 is: 99,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,831.40 : 239,747.10 = 66,519.40 : x
  2. Step 2: Convert to fraction form
    159,831.40/239,747.10 = 66,519.40/x
  3. Step 3: Cross multiply
    159,831.40x = 239,747.10 × 66,519.40
  4. Step 4: Simplify right side
    159,831.40x = 15,947,833,243.74
  5. Step 5: Solve for x
    x = 15,947,833,243.74/159,831.40
  6. Step 6: Final answer
    x = 99,779.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.